Metallic Iron usually experiences rust due to the oxygen in air. Mitsubishi Gas Chemical found this simple and natural mechanism is good for Food preservation by creating an oxygen free environment. This discovery became a Mitsubishi Gas Chemical patent and Ageless was developed and commercialized in 1977. This was the first oxygen absorber and remains the World's Top brand today. Mitsubishi Gas Chemical is proud that Ageless is the most reliable and highest quality oxygen absorber available today.

Historical Note:Denis Korn, owner of PrepareDirect, was the first person to introduce and utilize the oxygen absorber in the Outdoor and Food Reserve industries in the United States when he owned AlpineAire Foods and Gourmet Reserves. This occurred in about 1990, and the utilization of oxygen absorbers has become an industry standard used by the best industry companies and individuals packing their own food to ensure the lowest possible residual oxygen levels for an extended shelf life.